GX390 Honda Engine Specs
The GX390 is a powerful and reliable engine manufactured by Honda. It is widely used in various applications, including industrial equipment, generators, and agricultural machinery. Let’s take a closer look at the specifications of this impressive engine.
Engine Configuration
- Engine Type: 4-stroke, single-cylinder, air-cooled
- Displacement: 389 cc
- Bore x Stroke: 88 mm x 64 mm
- Compression Ratio: 8.2:1
- Valve Train: OHV (Overhead Valve)
- Fuel System: Carburetor
- Ignition System: Transistorized magneto ignition
- Starting System: Recoil (pull-start) or Electric (optional)
The GX390 engine is designed with durability and performance in mind. Its OHV valve train ensures efficient combustion and reduced fuel consumption. The transistorized magneto ignition system provides reliable starting and smooth operation.
Engine Oil Specs & Service Intervals
Proper maintenance is crucial to keep your GX390 engine running smoothly and extend its lifespan. Here are the engine oil specifications and recommended service intervals:
- Engine Oil Type: SAE 10W-30
- Oil Capacity: 1.1 liters (1.16 US qt, 0.97 Imp qt)
- Oil Change Interval: Every 50 hours or 3 months, whichever comes first
Regular oil changes are essential to maintain optimal engine performance. It is recommended to use high-quality SAE 10W-30 oil that meets or exceeds the requirements of the American Petroleum Institute (API) classification SJ or later.
When performing an oil change, ensure the engine is warm to allow for better oil flow. Follow these steps:
- Place a drain pan beneath the engine.
- Remove the oil filler cap and drain plug.
- Allow the oil to drain completely.
- Replace the drain plug and tighten it securely.
- Refill the engine with the recommended oil, using a funnel if necessary.
- Check the oil level using the dipstick and adjust if needed.
- Replace the oil filler cap.
Remember to dispose of the used oil properly, following local regulations or recycling guidelines.
Detailed Engine Specifications
| Specifications | Values |
|---|---|
| Engine Type | 4-stroke, single-cylinder, air-cooled |
| Displacement | 389 cc |
| Bore x Stroke | 88 mm x 64 mm |
| Compression Ratio | 8.2:1 |
| Valve Train | OHV (Overhead Valve) |
| Fuel System | Carburetor |
| Ignition System | Transistorized magneto ignition |
| Starting System | Recoil or Electric (optional) |
| Engine Oil Type | SAE 10W-30 |
| Oil Capacity | 1.1 liters (1.16 US qt, 0.97 Imp qt) |
| Oil Change Interval | Every 50 hours or 3 months, whichever comes first |
The GX390 Honda engine is a reliable and robust powerplant that delivers impressive performance. By following the recommended maintenance schedule and using the correct engine oil, you can ensure its longevity and enjoy its power for years to come.
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